US Bridges

I 291 Line L over HWY Main ST

Fair

Hampden County, Massachusetts · 0.1 M W JCT Dwight ST · Structure no. S24084116DOTNBI

Built
1969
56 years old
Condition
Fair
inspected April 2024
Type
Girder and Floorbeam System
Steel
Length
147 ft
2 main spans
Daily traffic
75,000
2015 count
Owner
State
State Highway Agency

About this bridge

I 291 Line L over HWY Main ST is a steel girder and floorbeam system carrying I 291 Line L over HWY Main ST in Hampden County, Massachusetts. It was built in 1969, so it is 56 years old, younger than the Massachusetts average of 63.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 75,000 vehicles a day, roughly 12% of them trucks, projected to reach 118,448 by 2031. The structure is 147 ft (44.7 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI 291 Line L
CrossesHWY Main ST
Location0.1 M W JCT Dwight ST
RouteInterstate 291
CountyHampden County
StateMassachusetts
Coordinates42.10856, -72.60004
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.8 US tons
Inventory rating37.6 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length147 ft (44.7 m)
Longest span70 ft (21.3 m)
Deck width45 ft (13.7 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75,000 (2015)
Projected traffic118,448 by 2031
Trucks12%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$1.2 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 291 Line L over HWY Main ST built?

It was built in 1969, making it 56 years old in 2025.

What condition is I 291 Line L over HWY Main ST in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in April 2024.

How much traffic does I 291 Line L over HWY Main ST carry?

About 75,000 vehicles per day (2015 count), of which roughly 12% are trucks.

How long is I 291 Line L over HWY Main ST?

The structure is 147 ft (44.7 m) long with a longest span of 70 ft (21.3 m) and a deck 45 ft wide.

Who owns I 291 Line L over HWY Main ST?

It is owned by the State Highway Agency.